sql修改文件语句

Question

我有一个SQL问题，并尝试了多种组合无济于事。我已经尝试过逗号和分号，在前两个之后），所有三个），所有这些都只是最后一个）。没有这样的运气。请帮我修复查询。提前致谢！

我已经做了尽职调查，并在多个网站来（我只能职位，因为reputatoin的两个链接），这些： Create database using script at the default path? http://www.sqlteam.com/forums/topic.asp?topic_id=148732

USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE 
(
    NAME = location_cust_db_data1, 
    MAXSIZE = UNLIMITED, 
) 
(
    NAME = location_cust_db_data2, 
    MAXSIZE = UNLIMITED, 
) 
(
    NAME = location_cust_db_data3, 
    MAXSIZE = UNLIMITED, 
) 
GO 

---

USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE (NAME = location_cust_db_data1, MAXSIZE = UNLIMITED) 
MODIFY FILE (NAME = location_cust_db_data2, MAXSIZE = UNLIMITED) 
MODIFY FILE (NAME = location_cust_db_data3, MAXSIZE = UNLIMITED) 
GO 

---

这工作，但做20个文件非常繁琐。

USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE 
(NAME = location_cust_db_data1, 
MAXSIZE = UNLIMITED) 


USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE 
(NAME = location_cust_db_data2, 
MAXSIZE = UNLIMITED) 
GO 

USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE 
(NAME = location_cust_db_data3, 
MAXSIZE = UNLIMITED) 
GO 

Answer 1

你的第三个选项是最接近的 - 每次修改必须是在一个单独的ALTER DATABASE命令，但你可以离开了USE语句，因为你总是从MASTER运行：

USE master 
GO 

ALTER DATABASE location_cust_db 
MODIFY FILE (NAME = location_cust_db_data1, MAXSIZE = UNLIMITED) 
GO 

ALTER DATABASE location_cust_db 
MODIFY FILE (NAME = location_cust_db_data2, MAXSIZE = UNLIMITED) 
GO 

ALTER DATABASE location_cust_db 
MODIFY FILE (NAME = location_cust_db_data3, MAXSIZE = UNLIMITED) 
GO 

..etc 

Answer 2

如果我有问题吧，所以这一块会帮助你

begin 
use master; 
declare @com nvarchar(1024); 
set @com='ALTER DATABASE location_cust_db MODIFY FILE (NAME = location_cust_db_data'; 
declare @i int; 
set @i=1; 
while(@i<20) begin 
     set @com=@com+str(@i)+' ,MAXSIZE = UNLIMITED);' 
     exec (@com); 
     set @i=@i+1; 
    end 
end 

Answer 3

use [location_cust_db] 
GO 

declare csDBFiles cursor local fast_forward for 
select 
    'ALTER DATABASE [' + DB_NAME() + '] MODIFY FILE (NAME = [' + name + '], MAXSIZE = UNLIMITED)' 
from 
    sys.database_files 

open csDBFiles 

declare @stmt varchar(2000) 

fetch next from csDBFiles into @stmt 
while @@fetch_status = 0 
begin 
    print @stmt 
    print 'GO' 
    exec(@stmt) 

    fetch next from csDBFiles into @stmt 
end 

close csDBFiles 
deallocate csDBFiles 
GO